Shuttle.



110.854.531. PATENTED MAY 21 1907.

J. ROBINSON.

SHUTTLE.

APPLICATION FILED JAN.11.1907.

Zl/iinesses JOSHUA ROBINSON, LAWRENCE, MASSACHUSETTS.

SHUTTLE.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed January 11, 1907. Serial No. 351,749.

To ctZZ whom it may concern.-

Be it known that I, J OSHUA ROBINSON, of Lawrence, county of Essex,State of Massa chusetts, have invented an Improvement in Shuttles, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts.

This invention relates more particularly to that class of shuttles whichare employed in worsted weaving looms, in which a spindle, having aflanged extremity, is adapted to be removably connected to a socketpiece pivoted in the shuttle, so that the bobbin may be passed on andoff the base end of the spindle by removing the latter from its socket.

It is desirable to employ shuttles adapted to receive bobbins capable ofcarrying as much thread as possible, and, for this reason, the shuttlesare made to carry bobbins of the greatest length practicable. It will beobvious that a slight looseness or yielding of the spindle at its baseend, or of the socket, will permit movement to a much greater extent atthe tip of the spindle. The spindle and socket often become worn so thatthe spindle becomes more or less loose in its socket, and this loosenessis often sufficient to permit the spindle to swing laterally orhorizontally to a sufficient extent to permit the edge of the flange onthe end of the spindle to strike the inner sides of the shuttle, withthe result that the thread is frequently caught therebetween and broken.

The socket piece is, or should beheld to swing closely between the sidesof the recess in the shuttle body in which it is placed, so that anytendency of the socket to swing laterally or horizontally to a materialextent will be prevented. It frequently happens, however, that thesocket piece does not fit the sides of its recess as tightly as itshould when the shuttle is new, and also that the wood becomes worn awayto such an extent that it is of no assistance in preventing transverseswinging movement of the socket piece and the spindle.

The object of my invention is to provide means whereby the spindle is soheld that all tendency thereof to become loose in the socket and toswing laterally therein is prevented, and, further, to provide meanswhere-' by the lateral swinging of the socket is also prevented. Iaccomplish these objects by the means shown in the accompanying drawing,in which,

Figure 1 is a plan view of the portion of the shuttle provided with myinvention. Fig. 2 is a central longitudinal sectional view on the line22 Fig. 1. Fig. 3 is an enlarged view of the shuttle socket. Fig. 4 is asectional view on the line 4-4 of Fig. 2. Fig. 5 is an enlarged detailview of the end of the base spindle.

As shown in the drawing, the shuttle body a is provided with a socketpiece I) which is pivoted 011 the pin 0 mounted in the shuttle body, theusual holding spring (1 being provided. The s indle e is provided withthe usual holding flange at its tip and recesses in its base end toreceive the usual fixed locking pins f and g mounted in the shuttle bodyfor locking the spindle in place when turned into its normal position inthe shuttle.

The base end of the spindle, which is fitted in the socket, is centrallyand vertically slotted from its end to a point adjacent or a shortdistance beyond the end of the socket to provide two oppositelydisposed, semicylindrical arms e, e said arms being adapted to springapart horizontally and to be pressed together to an extent suflicient topermit them to be inserted in the socket, the end of said arms beingslightly tapered to permit this to be accomplished readily. The extentto which and the force with which these arms are adapted to spring apartis designed to be sufficient to cause them to engage the inner oppositesides of the socket with sufficient force to hold the spindle fromswinging horizontally or laterally therein.

The socket b is also split from its front end to a point a shortdistance in advance of its pivot pin 0 providing two sections 1) and 6which are adapted to be sprung apart horizontally, so that the outersides thereof will fit closely in the shuttle body recess in which saidsocket is located. A tapered plug or screw g is provided in the flangeof the socket against which the base of the bobbin rests, said plugbeing adapted to be forced downwardly or inwardly to force said sections6, b apart, so that in case the socket does not fit snugly in theshuttle body or the body becomeswvorn, so that the socket fits looselythereinand a lateral motion thereof is permitted, "such lateral motionmay be prevented by simply forcing the tapering screw or -which it islocated. In case such adjustand a spindle adapted to be inserted andplug g inwardly suflicient to spread the end I portion of the socketuntil it fits the recess in ment is made, it will be necessary to spreadthe spring arms 6, e of the spindle correspondingly, otherwise thespindle would fit loosely within the socket. As the pivoted end of thesocket is not spread it will be necessary, in such instance, to bend outthe intermediate portion of said arms without spreading the end portionsto such an extent as to interfere with the facility with which thespindle may be inserted in the .socket. With the above describedconstruction, therefore, the spring arms e, e will hold the spindle fromtransverse swinging movement in the socket, and the socket may beadjusted to the recess in which it is located so that it cannot swingtransversely of its pivot, thereby preventing the breaking of the threadby the engagement of the'lspindle with the inner sides of the shuttle.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is a 1. A shuttle of the character describedcomprising a pivotally mounted'socket piece,

locked therein, the end portion of said spindle located in the socketcomprising a pair of spring arms adapted to fit in the socket and toengage opposite sides thereof tojihold the spindle from horizontal ortransverse swinging movement in the shuttle, substantially as described.

2. A shuttle of the character described comprising a pivotally mountedsocket piece l and a spindle having its base end portion adapted to beinserted in said socket the base end portion of said spindle beingcomposed of two oppositely disposed, semi-cylindrical arms fitted insaid socket, and acting yieldingly to engage opposite sides of thesocket to hold the spindle from transverse swinging movement therein,substantially as described.

3. A shuttle of the character described comprising a body having arecess, a socket piece. pivotally mounted at one end in said recess, andhaving its opposite end portion composed of two sections, means forspreading said sections to fit the sides of said recess, and a spindleadapted to be inserted in said socket p1ece having its insertibleportion composed of two arms adapted to be spread to fit the socket,substantially as described.

4. A shuttle of the character described comprising a body having arecess, a socket piece pivotally mounted at one end in said recess, andhaving its opposite end portion composed of two sections adapted to bespread to fit the sides of said recess, and a spindle adapted to beinserted in said socket piece having its insertable portion composed oftwo arms adapted to be spread to fit the socket, substantially asdescribed.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

JOSHUA ROBINSON.

Witnesses:

L. H. I-IARRIMAN, H. B. DAVIS.

